Exhorder is an American heavy metal band from New Orleans, Louisiana. They are considered progenitors of the groove-oriented thrash sound later made famous by bands such as Pantera, Lamb of God, White Zombie, and Machine Head. Their debut LP was regarded as a large influence on the NOLA metal scene. Initially active from 1985 to 1994, reformed from 2008 to 2011, they have since reformed in 2017.

In November 2017, Exhorder ended their six-year hiatus with a newly formed line-up and had signed a worldwide deal with All Independent Service Alliance. They announced a two-night event in Brooklyn, New York for February 9 and February 10, 2018 by performing the entire Slaughter in the Vatican and The Law albums respectively. They will also perform a homecoming show on February 12 in New Orleans. The band is also planning summer festival appearances, and will consider working on new material if the reunion shows go well.